They were beaten by the Bulls in the URC at the weekend.
Leinster head coach Leo Cullen says they were beaten by a more 'clinical' Bulls team in the United Rugby Championship at the weekend.
The reigning champions lost 39-31 at Loftus Versfeld, as they started a campaign with back-to-back losses for the first time since 2003.
Jack Crowley scored eight points as Munster edged out Cardiff 23-20 at Thomond Park to make it two wins from two.

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